Installation Instructions HM2085-PLM Strain Gage Input Module

Transcription

1 Helm Instrument Company, Inc. 361 West Dussel Drive Maumee, Ohio USA Phone: Fax: Installation Instructions HM2085-PLM Strain Gage Input Module October, 2016 Process Control Systems, Instruments and Transducers Visit our Web Site at or us at

2 Helm HM2085-PLM Installation Instructions HELM INSTRUMENT COMPANY, INC. manufactures a complete line of load monitoring control solutions for use on metal stamping, forging, compaction and assembly presses, thermoforming and tablet presses. Standard or custom transducers and load cells are available for in-die monitoring of transfer or progressive tooling. At HELM, quality is inherent not only in the design of our products but in the attitudes of our employees as well. We re working together to give you the best. After all, that s what our business is all about - providing innovative instrumentation to help make your manufacturing process more productive and your operation more effective. The Helm HM1085-LM is a 2-channel strain gage input module featuring programmable high and low limits to protect the machine, the tooling and to ensure part quality. Strain Gage Transducers The primary part of the load monitoring system centers around the measurement. The basic function of the Helm HT-400 Strain Gain sensor is to detect the amount of deflection imposed on the press or die as parts are being formed. All Strain Gain sensors are matched to within 1% and therefore can be replaced without recalibration of the machine. The Helm Strain Gain sensors can be mounted to strategic high stress areas of the machine frame or strategically located in tooling or applied to stop blocks. Signals from these sensors are routed to the module for processing. The module is capable of measuring either a tension or compression signal. Explosion Hazard Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product. Substitution of components may impair suitability for Class I, Division 2. Preventing Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment. Touch a grounded object to discharge potential static. Wear an approved grounding wrist strap. Do not touch connectors or pins on component boards. Grounding Do not touch circuit components inside the equipment. If available, use a static-safe workstation. When not in use, store the equipment in appropriate static-safe packaging. The controller is grounded through DIN rail to chassis ground. Use zinc plated, yellow chromated steel DIN rail to assure proper grounding. Using other DIN rail materials (e.g. aluminum, plastic,etc.) which can corrode, oxidize or are poor conductors can result in improper or intermittent platform grounding. Page 1

3 Helm HM2085-PLM Installation Instructions System Operation The module communicates to the processor through the parallel backplane interface and receives +5Vdc and +24Vdc power from the power supply through the backplane. No external power supply is required. Each individual channel on the module can receive input signals from strain gage based sensors. The module converts the analog values directly into digital values. Sensor Wiring The sensors are wired to the modules using the rightmost bank of inputs. The pin-out is shown below. To ensure proper operation and high immunity to electrical noise, always use Helm strain gage cable. To limit noise, keep strain gage cable as far away as possible from power and load lines. The module can support up to two sensor inputs. DO NOT attempt to parallel additional gages as you will cause damage to the module and void product warranty. Page 2

4 Helm HM2085-PLM Installation Instructions Install Software Copy folder HM2085PLM-Rev1 from ManualCD to selected folder on user computer. Open CCW (Connected Components Workbench) and select Open. Locate folder on hard drive and open HM2085PLM-Rev1.ccwsln. Name Data Type Dimension String Size Initial Value Direction Attribute Comment Alias Project Value bypass_mode BOOL 1 Var ReadWrite TRUE bypass_scale BOOL Var ReadWrite read mv/v FALSE sets cam_bit BOOL Var ReadWrite TRUE ch1_cleartare BOOL 0 Var ReadWrite read adtrim FALSE ch1_dev REAL Var ReadWrite 34.0 ch1_float REAL Var ReadWrite 0.0 ch1_high_cap BOOL Var ReadWrite FALSE ch1_highcapset INT Var ReadWrite 1050 ch1_hitrendset DINT Var ReadWrite 0 ch1_lotrendset DINT Var ReadWrite 0 ch1_low_cap BOOL Var ReadWrite FALSE ch1_lowcapset INT Var ReadWrite 0 ch1_percent REAL Var ReadWrite ch1_record BOOL Var ReadWrite FALSE ch1_revload INT Var ReadWrite 25 ch1_tare BOOL Var ReadWrite set ch1 scale FALSE ch1_trend DINT Var ReadWrite 0 ch1hitrend BOOL Var ReadWrite TRUE ch1lotrend BOOL Var ReadWrite TRUE ch2_cleartare BOOL 0 Var ReadWrite set ch2 scale FALSE ch2_dev REAL Var ReadWrite ch2_float REAL Var ReadWrite ch2_high_cap BOOL Var ReadWrite FALSE ch2_highcapset INT Var ReadWrite 1050 ch2_hitrendset DINT Var ReadWrite ch2_lotrendset DINT Var ReadWrite ch2_low_cap BOOL Var ReadWrite FALSE ch2_lowcapset INT Var ReadWrite 0 ch2_percent REAL Var ReadWrite ch2_record BOOL Var ReadWrite FALSE ch2_revload INT Var ReadWrite 24 ch2_tare BOOL Var ReadWrite read scale FALSE sets ch2_trend DINT Var ReadWrite ch2hitrend BOOL Var ReadWrite ch2lotrend BOOL Var ReadWrite counterbit BOOL Var ReadWrite FALSE cyclecntreset BOOL Var ReadWrite FALSE Page 3

5 Helm HM2085-PLM Installation Instructions cyclecount DINT Var ReadWrite 98 enable_avg BOOL Var ReadWrite FALSE extra7 BOOL Var ReadWrite FALSE extrainput10 BOOL Var ReadWrite FALSE extrainput11 BOOL Var ReadWrite FALSE extrainput12 BOOL Var ReadWrite FALSE extrainput13 BOOL Var ReadWrite FALSE extrainput14 BOOL Var ReadWrite FALSE extrainput15 BOOL Var ReadWrite FALSE extrainput6 BOOL Var ReadWrite FALSE extrainput7 BOOL Var ReadWrite FALSE extrainput8 BOOL Var ReadWrite FALSE extrainput9 BOOL Var ReadWrite FALSE forcedata DINT [ ] Var ReadWrite learncomplete BOOL Var ReadWrite FALSE load_wav BOOL Var ReadWrite FALSE low_alarm_inh BOOL Var ReadWrite lowalarmcount DINT Var ReadWrite er lowinhcount DINT Var ReadWrite mode BOOL Var ReadWrite FALSE motionbit BOOL Var ReadWrite peak_mode BOOL Var ReadWrite clear tare FALSE ch1 peak1 DINT Var ReadWrite 29 peak2 DINT Var ReadWrite 21 playback BOOL Var ReadWrite FALSE readcal BOOL Var ReadWrite save to FALSE eeprom relearnbit BOOL Var ReadWrite reset BOOL Var ReadWrite clear tare FALSE ch2 samplecount DINT Var ReadWrite 0 sampleset DINT Var ReadWrite 0 savetoeeprom BOOL Var ReadWrite FALSE set_cal BOOL Var ReadWrite set tare ch1 FALSE set_ref_tons INT Var ReadWrite 1000 start_wav BOOL Var ReadWrite FALSE startlowinh BOOL Var ReadWrite wavedatatest DINT Var ReadWrite 0 xferdata BOOL Var ReadWrite FALSE Page 4

6 Helm HM2085-PLM Installation Instructions OUTPUT TAG DESCRIPTIONS TRACK MODE (Data[0]): Bit 0 Used for initial installation PEAK MODE (Data[0]): Bit 1 A/D values scaled with math in ladder logic CLEAR TARE BIT (Data[0]): Bit 2 Clears internal tare value for zero state. Useful when troubleshooting load cell wiring or other failures. TARE (Data[0]): Bit 3 Sets A/D value to zero. ALARM RESET (Data[0]): Bit 4 SET CAL FACTOR (IN PEAK MODE ONLY) (Data[0]): Bit 5 READ CAL FACTOR (IN PEAK MODE ONLY) (Data[0]): Bit 6 RECORD MODE (Data[0]): Bit 7 Used for troubleshooting, check signal strength and waveform storage. This feature allows the module to update a block of memory at real time data using Grab Data ladder logic to create data block. Track, Peak mode bits off. - Set module to record mode, wait for value = 20, clear record mode. - Run Grab Data routine to get real time data. - Set Track mode bit. BYPASS SCALING (Data[1]): Bit 1 SAVE TO EEPROM (Data[1]): Bit 2 Use to save all settings to module Page 5

7 Helm HM2085-PLM Installation Instructions REQUIRED CONTROLLER TAGS SET REFERENCE TONS Full scale setting for CH1 Value is determined by capacity of load cell and by resolution required. Actual value is from load cell specification or rated capacity on column or side of press. LOW CAPACITYALARM SET Enter desired value to set low alarm limit. VALUE Reports measured peak tonnage value in RUN mode. Reports raw A/D count value in CAL mode. HIGH CAPACITY SETTING Enter desired value to set high alarm limit. HIGH CAPACITY ALARM BIT Bit is set when high limit is reached LOW CAPACITY ALARM BIT Bit is set when low limit is reached. CHECK REFERENCE TONS Used to verify that the module has the correct value. CHECK LOW CAPACITY SET Used to verify that the module has the correct value. CHECK HIGH CAPACITY SET Used to verify that the module has the correct value. NOTE: After changing any setting, module should be set to Track mode. Toggle SAVE TOEEPROM bit to save settings. Page 6

8 Helm HM2085-PLM Installation Instructions Troubleshooting with the Indicators Module Status: Off Green No power applied to device. Device operating normally. Page 7

9 Helm HM2085-PLM Installation Instructions Setup Procedure A complete listing of a sample ladder logic program is included at the back of this manual. Examples shown here are for reference. All values are 0 (default) on initial start-up. This means that all alarms are disabled. You must make the following adjustments for proper operation: Balance sensor input(s) Set Calibration numbers For each channel used: Step 1. Balance Sensor Input 1. Set to TRACK mode. 2. Set Clear Tare bit momentarily and set check coarse zero bit. 3. Check Raw A/D value. 32,000 CH1 = Controller Tag value. 4. Set Zero Tare bit momentarily. Step 2. Set Calibration Factor 1. Set to PEAK Mode. 2. Set Reference Tons to Actual Load/Tons. 3. Run Machine. 4. Toggle Set Cal Factor Bit. 5. Value should Equal Load/Tons. 6. Set Read Cal Factor Bit to Record Cal Factor on Calibration Sheet. 7. Set to TRACK Mode. 8. Toggle SAVE TO EEPROM bit. Page 8

10 Controller.Micro850.Micro850.Prog1

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14 POU Prog1 The POU defines 3 variable(s). Variable cal1 (* *) Direction: Data type: Attribute: Var DINT Read/Write Variable cal2 (* *) Direction: Data type: Attribute: Var DINT Read/Write Variable CTU_1 (* *) Direction: Data type: Attribute: Var CTU Read/Write

15 HM2085-PLM Specifications Helm Instrument Company, Inc. 361 West Dussel Drive Maumee, Ohio USA 419/ Fax: 419/ Backplane Power Consumption Type of input Input Impedance Display Resolution Overall Module Accuracy Module Update Time Number of Channels 70mA 132mA Strain Gage (350 ohm, 700 ohm) 10k Up to.1% of full scale.01% of full scale 2 milliseconds 2 (isolated) A/D Conversion Method Successive Approximation 16 Normal Mode Rejection: (between +/- input) Amplifier Bandwidth Calibration Isolation: LED indicators 116DB CMRR 200 khz Software Selectable 500 VDC continuous between inputs and chassis ground, and between input and backplane 2 LED's for Power and Alarm Recommended Cable Strain Gage Cable (Helm part number 6117) Operating Temperatures Hazardous Environment Classification 0 C to 60 C (32 F to 140 F) Class 1 Division 2 Hazardous Environment HM2085-PLM SPECIFICATION

16 HELM HM2085-WM & PLM Customer Connections HM2085 WM +S shield CH. 1 INPUT -S +G -G +S shield CH. 2 INPUT -S +G -G